@inproceedings{3afb19ce47824748800ad99fc636c197,
title = "Study on fatigue and energy-dissipation properties of nanolayered Cu/Nb thin films",
abstract = "Energy dissipation and fatigue properties of nano-layered thin films are less well studied than bulk properties. Existing experimental methods for studying energy dissipation properties, typically using magnetic interaction as a driving force at different frequencies and a laser-based deformation measurement system, are difficult to apply to two-dimensional materials. We propose a novel experimental method to perform dynamic testing on thin-film materials by driving a cantilever specimen at its fixed end with a bimorph piezoelectric actuator and monitoring the displacements of the specimen and the actuator with a fibre-optic system. Upon vibration, the specimen is greatly affected by its inertia, and behaves as a cantilever beam under base excitation in translation. At resonance, this method resembles the vibrating reed method conventionally used in the viscoelasticity community. The loss tangent is obtained from both the width of a resonance peak and a free-decay process. As for fatigue measurement, we implement a control algorithm into LabView to maintain maximum displacement of the specimen during the course of the experiment. The fatigue S-N curves are obtained.",
keywords = "nanolayered thin films, fatigue, loss tangent",
author = "Y.-C. Wang and T. H{\"o}chbauer and J.G. Swadener and T. Darling and A. Misra and R. Hoagland and M. Nastasi",
note = "{\textcopyright} 2006 WIT Press. This publication is freely available on the publisher's website. ; 3rd international conference on High Performance Structures and Materials, HPSM'06 ; Conference date: 03-05-2006 Through 05-05-2006",
year = "2006",
doi = "10.2495/HPSM06031",
language = "English",
isbn = "978-1-84564-162-7",
volume = "85",
series = "WIT transactions on the built environment",
publisher = "WIT Press",
pages = "323--330",
editor = "C.A. Brebbia",
booktitle = "High performance structures and materials III",
address = "United Kingdom",
}